<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./lib/jquery.js"></script>
</head>

<body>
    <form action="/login" id="f1">
        <input type="text" name="user_name" id="">
        <input type="password" value="" name="password">
        <input type="submit" value="提交">
    </form>
    <script>
        $(function () {
            // //第一种方式
            // $('#f1').submit(function () {
            //     console.log(object);
            // })
            //第二种
            $('#f1').on('submit', function () {
                console.log(1);
            })
        })
    </script>
</body>

</html>